根据法拉第电磁感应定律, 导体在磁场中运动会产生感应电压。
在电磁测量原理中, 流动的介质相当于运动的导体。感应电压(Ue)与介质流速(v)成比例, 并通过两个测量电极将感应电压加载在放大器上。基于管道横截面积(A)计算体积流量(Q)。极性交替变换的开关直流电生成直流(DC)磁场。
计算公式
• 感应电压: Ue = B · L · v
• 体积流量: Q = A · v
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